51.   So Dam instead used his miles for a golfing vacation in the Upper Peninsula of Michigan.

52.   Some farmers travel hundreds of miles for these weekends, looking for mates or simply to socialize.

53.   Some of the best deals come from using frequent flier miles for business class or first class.

54.   Something like breaking the four-minute mile for the first time.

55.   Some members may have enough miles for a certificate for a free trip or an upgrade that would be valid for another year.

56.   Sometime early next year, AAdvantage members will be able to earn and redeem miles for flights on ALM.

57.   That is in addition to the usual award miles for the trip.

58.   The airlines say they will soon announce when United fliers can cash in miles for tickets on Delta and vice versa.

59.   The company plans to offer special incentives, such as frequent-flyer miles for accomplishing a given amount of processing.

60.   They could toy around with some performance guarantees, providing frequent-flier miles for excessive flight delays or cancellations.